Has anyone any advice on cleaning copper/brass very old steam fittings.
I think they are copper because the metal seems very soft - dents,
chips etc but friends tell me that steam fittings should be brass as
copper would be too soft for the work involved.
Anyway I have used ind paint stripper to clean of years/layers of paint
but I am now left with a black coating, no idea what it is, it does not
come off on your hands and paint stripper does not touch it - is it
impregnated steam/oil ! The coating will come off by rubbing with very
light emery paper but is this the best way. I do not want a thousand
stratches. A polishing mop could be one idea but I am hoping someone
knows better.
Thanks